Aerator with horizontal discs



March 20, 1956 J GQODRE AERATOR WITH HORIZONTAL DISCS Filed Dec. 14, 1955 IN VEN TOR. NW5

ATTORNEY.

United States Patent AERATOR WITH HORIZONTAL DISCS Joseph J. Goodrie, Chicago, Ill., assignor to Wrightway Engineering Co., Chicago, Ill., a corporation of Illinois Application December 14, 1953, Serial No. 398,082 1 Claim. (Cl. 261-76) This invention relates to an improved aerator with horizontal discs, and the present invention comprises an improvement and a further advancement over my prior patents on similar devices, one of which is entitled Water and Air Mixing Device, No. 2,510,395, the other'being entitled Aerating Device, No. 2,510,396, both being granted on June 6, 1950.

The present application also comprises an advanced improvement over my previously filed application for patent entitled Aerator With Internal Horizontal Flanges, Serial No. 288,683, filed May 19, 1952.

The apparatus described in the following specification and shown in the accompanying drawings provides a very satisfactory and intimate mixture of air and water producing a non-splash, coherent jet which is very desirable for various washing and cleaning operations, particularly work in the kitchen.

Other and further important objects of the invention will be apparent from the disclosures in the accompanying drawing and following specification.

The invention, in a preferred form, is illustrated in the drawings and hereinafter more fully described.

In the drawings:

Figure 1 is an elevation of an ordinary water faucet having the improved aerator of my invention applied thereto.

Figure 2 is an enlarged sectional view of the aerator shown on the faucet of Figure 1, and taken on the line 2-2 of that figure.

Figure 3 is a horizontal section taken on the line 3-3 of Figure 2, looking in the direction indicated by the arrows.

Figure 4 is a top plan view of the one-piece insert which forms an important and novel part of the improved aerator of this invention.

Figure 5 is a view partly in section of the structure of Figure 4, taken on the line 5-5.

Figure 6 is a view similar to Figure 2, but illustrating a slight modification of the invention.

Figure 7 is a partially sectional view of the internal structure of Figure 6.

Figure 8 is a sectional view taken on the line 8-8 of Figure 7, looking in the direction indicated by the arrows.

Figure 9 illustrates a further slightly modified form of the inventions illustrated in Figures 2 and 6.

Figure 10 is a view, partly in section, of the internal structure of Figure 9.

As shown in the drawings:

The reference numeral 12 indicates generally an ordinary water faucet or the like to which the novel aerator of this invention is fitted by screw-threading or in some other convenient manner.

The aerator itself comprises an outer casing 14, somewhat cylindrical in shape, internally screw-threaded at its upper end to fit the faucet or otherwise provided with an adaptor of some type, and with its lower end somewhat restricted and preferably provided with internal spaced shoulders 16. Shoulders of this type are illustrated and described in some of my earlier patents and applications.

The casing 14 is provided with a plurality of air inlets, preferably comprising slots as shown at 18, and these are of such dimension as to provide. the desired amount of air to be automatically mixed with the water passing through the casing 14.

Mounted upon a shoulder formed in the upper end of the casing adjacent the threaded portion thereof is a perforated disc 20. The perforations 22 in this disc can be varied as to size and number, but are usually circularly arranged and spaced approximately midway between the periphery of a disc and its center. A sealinggasket 24 is fitted into position above the disc, and the disc itself is mounted abovethe air inlet ports 18.

An opening is provided in the center of the disc 20 and a Water and air mixing element is fitted into this opening, the same comprising an enlarged medial body portion 26 having its upper face somewhat ogival in shape, and provided with a cylindrical extension which passes through the central opening in the disc 20. The upper end of this extension is riveted into position as shown at 28.

An integral cylindrical lower extension 30 forms part of the ogival body 26, and this is adjacent the uppermost of the internal shoulders 16.

Mounted on the ogival element 26 and adjacent its conjunction with its upper cylindrical extension, is a second perforated disc 32, and a spacer 34 separates the two discs and maintains them in proper position on the ogival element 26.

The openings 36 in the disc 32 are preferably in alignment with the openings 22 in the disc 20 and the same in number. However, these openings are larger.

Water passing through the openings 22 in the upper disc 20 will attain a suflicient velocity to draw in the requisite amount of air through the ports 18, and these streams of water will then pass through the larger openings 36 in the disc 32 and impinge upon the upper face of the ogival element 26. It will be noted that a space is left between the periphery of the disc 32 and the inner wall of the casing 14 just below the air ports, permitting more air to pass in, which is then thoroughly mixed with the previously mixed air and water by reason of impingement upon the element 26. As the flow of mixed air and water continues downwardly through the aerator, additional and more thorough mixing is effected in the space between the lower extension 30 of the ogival element 26 and the internal shoulders 16 in the restricted lower ends of the casing 14.

A screen 40 can be fitted on to the lower end of the casing 14 in any convenient manner, as by a pressed ring 42, and this screen serves to produce a more intimately mixed and more coherent jet of issuing air and water.

In Figures, 6, 7 and 8, a slightly modified form of the invention is shown, wherein the casing 14 is provided with air ports 18 and the upper-disc 20 is the same as previously described. The ogival element 26 with its integral lower extension 30 co-operating with the internal shoulders 16, are all unchanged.

However, the lower disc which is below the air ports and which is indicated by the reference numeral 44, is provided with a depending lip or flange 46 which assists in producing a better mixture of air and water, and also guards against inadvertent back splashing of water through the air inlets 18. This sometimes occurs when excessive water pressure is applied to the aerator.

In Figures 9 and 10, the casing of the aerator is shaped somewhat differently both interiorly and exteriorly, and this is identified by the reference numeral 50.

The one-piece internal element comprising the two discs and the ogival element 26 is the same as hereinabove *deseribedfbut the lower integral extension of the body 26 isflshortenedoasshown 2152.

Likewise, the screen 54, instead of being at the outer end of the casing or body portion 50 is positioned some- -what-above the lower edge upon ani integral :shouldere56, and is held in positioni'by 'an.-annular retainer 58. lThe 'inner upper face: of this retainer is curved: as shown 1 in order to assist in the'finaldesired mixing of air and water.

It-will be seen that herein is provided an-improved aerator which produces a better mixture of air-and-water and consequently a more coherent, "non-splash stream. There-is just 'one single internalelement which cannot possiblytget'outoforder, :and-even if the openings in the the ports, a perforated discloosely positioned on the shoulder, a second perforated-disc belowtheair inlet ports, an ogival mixing element positioned 'centrallyof the'casing and supported by the upper disc, the perforations in the upper disc being smaller than the perforations inthellowertdiseand all of said ,perforations being in alignment, the second and lower disc having an external diameter slightly less than the internal diameter of the adjacent portion of the casing and including an integral downturned flange, an integral lower extension on the ogival mixing element rand an integral upper extension thereon, said upper extension connecting and spacing the discs, the spacing meansincluding an annular sleeve surrounding the upper extension of the ogival element and mounted between the discs, a screen positioned at the outer end of the casing, an internal annular shoulder at said outer end for supporting the screen and an annulus having an upper internal rounded shoulder in the casing and fitting against the outer periphery of the screen and against the inner face of the casing.

References Cited in the file of this patent UNITED STATES 'PATENTS 2,510,396 Goodrie June 6, .1950 2,624,559 Hyde Ian. 6, 1953 2,633,343 Aghnides Mar. 31, 1953 

